# 打印杨辉三角


def main():
    num = int(input("number or rows:"))
    yh = [[]] * num
    for row in range(len(yh)):
        yh[row] = [None] * (row + 1)
        for col in range(len(yh[row])):
            if col == 0 or col == row:
                yh[row][col] = 1
            else:
                yh[row][col] = yh[row-1][col] + yh[row-1][col-1]
            print(yh[row][col], end='\t')
        print()


if __name__ == "__main__":
    main()